Using properties of determinants. Prove that`|[1 ,1+p,1+p+q],[2, 3+2p,4+3p+2q],[3, 6+3p, 10+6p+3q]|=1`

Explanation

To prove that

\[
D = \begin{vmatrix}
1 & 1+p & 1+p+q \\
2 & 3+2p & 4+3p+2q \\
3 & 6+3p & 10+6p+3q
\end{vmatrix} = 1,
...